Hose-coupling.



PATENTED MAR. 17, 1908.

E. GU NNELL.

HOSE COUPLING.

APPLIOATION FILED JAN. 24, 1906.

WITNESSES INVENTOR IlNITED STATE ELIAS GUNNELL, OF MANI'IOWOC, WISCONSIN.

HOSE-COUPLING.

s Pn'rENT OFFICE.

Patented March 17, 1908.

To all whom it may concern:

Be it known that I, ELIAS GUNNELL, a citizen of the United States, residing at Manitowoc, in the county of Manitowoc and State of Wisconsin, have invented certain new and useful Im rovements in Hose-Couplings, of which the ollowin is a specification.

My invention re ates to means for detachably connecting sections of hose intended for the transmission of fluid under pressure, and its objects are; to provide a fluichtight joint between said sections by means of a coupling composed of companion members of a similar construction, adapted to automatically interlock when in one position and to unlock and be readily taken a art when in the reverse position to provic e a coupling of an exceedingly simple and durable construction, free from complicated parts and one in which the gaskets are so constructed that they'will act to hold the companion members securely locked together when brought into contact and will remain in the couplin members when separated, without the emp oyment of additional mechanism. These objects, and other advanta es which will hereinafter apear, I attain y means of the construction illustrated in the preferred form in the accompanying drawings, wherein Figure 1 1s a side elevation' of the two companion members locked together;

Figure 2 is a longitudinal section through the two members,

Figure 3 is a side elevation of the end of one of the members;

Figure 4 is an end view of the same, and

Figure 5 is a longitudinal section through the end of one of the sections.

The coupling may be made of any mate rial suitable for the purpose, but is pref erabl made of a composition of aluminium, nickel: tin and cop er, in the approximate proportions ofa uminium 87%, nickel 7%, tin 3 1:% and co per 2%%. This makes alight, durable an exceedingly strong coupling. As above stated, however, the coupling may be made of any suitable material, and is not restricted to the composition recited.

In the practice of my invention I provide a coupling of two companion members 6 and 7 of exactly similar construction, each of said members consisting rimarily of a hollow shank 8 to which the hose is secured and a head portion 9 of greater diameter than the shank. Gaskets 10 are fitted in the heads 9 and are retained therein by means of an, annular recess 11, formed in the head, said recess being adapted to receive and hold the shoulder 12 formed on the gasket. The gaskets are composed of an elastic material such as rubber, whereby they may be readily sprung into place in the recesses. The gas kets project beyond the heads to such an extent that it is necessary to subject them to considerable com ression when makin a coupling, the resu tant ex ansive action serving to bring the faces of he gaskets into closer contact, thereby insuring a tight joint at the faces of the gaskets, and at the same time holding the companion members (if the coupling firmly interlocked by means of the mechanlsm to be presently described. The coupling members are each provided with a plurality of interlocking hooks 13, (in the present instance three), which hooks 13 are adapted to engage in the manner indicated in Figure 1 and lock the two coupling members together. Each coupling member is provided with a recess 14 into which the point of the hooked member of the companion part is adapted to fit. When it is desired to secure the two members together the heads are placed so that the points of the hooks are adjacent and longitudinal pressure is exerted together with a twisting movement. The longitudinal pressure com presses the gaskets so that the points of the ooks are in position to pass, and the twisting movement brings such points into the position indicated in Figure 1. When it is desirable to uncou le the members the 0p-- eration is reverse It will be noted that the ends of the hooks are somewhat rounded and are adapted to constitute camming surfaces, whereby the longitudinal pressure necessary to get the hooked end in engagement is decreased, for the reason that when twisting force is exerted the cam surfaces engage and tend to move the members longitudinally. It will thus be seen that tie coupling and uncouplin is facilitated, and that much less pressure ongitudinally needs to be exerted in uncouplin or coupling. The size of the gaskets is suc that when in locked position as in Figure 1 such gaskets are under compression. This presses the two members apart, causing a firm interlocking engagement between the two members. Itwil be of course a parent that a different number of hooke members 13 might be used. Three such members, however, are sufficient, and a greater number is make a tightj'omuwould not give the same unnecessary, and a less number, as two,

while they might hold the coupling and secure joint and satisfactory result that three do.

Having thus described my invention and illustratedvits use, what I claim as new and desire to secure by Letters Patent, is the following:

Ahose coupling com rising a air of co'. operating members, sac of whic members comprisesashank, a head and a plurality of hooks thereonhaving rounded ends and pro-' vided with curved recesses, which recesses,

are adapted to receive the rounded ends of the hoo s on the opposing member "and are of such size as to receive the hooks loosely and permit of a relative rotary movement of the members after the hooks are seate 1n the recesses.

In testimony whereof I have hereunto signed my name in the presence of the two subscribed witnesses.

ELIAS GUNNELL.

Witnesses:

PAUL CARPENTER,

ALBERT G. MILLER. 

